Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
20003excellentexcellent21excellent
19002excellentexcellent11excellent
18001excellentexcellent11excellent
17002excellentexcellent11excellent
16002excellentexcellent11excellent
150012excellentexcellent11excellent
14002excellentexcellent11excellent
13002excellentexcellent11excellent
120036goodexcellent11excellent
11001excellentexcellent11excellent
100026goodexcellent11excellent
09002excellentexcellent11excellent
08002excellentexcellent11excellent
07008excellentexcellent11excellent
06005excellentexcellent11excellent
05008excellentexcellent11excellent
040032goodexcellent21excellent
030014excellentexcellent11excellent
020012excellentexcellent11excellent
01006excellentexcellent21excellent
00007excellentexcellent21excellent
230014excellentexcellent41excellent
220013excellentexcellent41excellent
21009excellentexcellent21excellent